2 years ago

How I start step by step

Mathematics

1 answer:

valentina_108 [34]2 years ago

3 0

It’s finding the area but with more numbers so start from the bottom and work your way up

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I drove 2 1/2 hour at a constant speed of 60 miles per hour and then for another 30 minutes at a speed of 40 miles per hour how

nekit [7.7K]

60*2= 120

60/2= 30

120+30= 150

40/2= 20

150+20= 170

You drove 170 miles.

I hope this helped!

3 0

3 years ago

Dist

Pachacha [2.7K]

I’m confused on the question but i think

-85 ? I don’t see an A variable in the question.

6 0

2 years ago

Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Olenka [21]

Answer:

50%

Step-by-step explanation:

The distance between each dot is 25%

From 68 to 70 is 25% and 70 to 74is 25%

Above 68 is 25+25 or 50 %

6 0

2 years ago

The width of a triangle is six more than twice the height. The area of the triangle is 88in2. Find the height and base of the tr

malfutka [58]

For this case we have that by definition, the area of a triangle is given by:

$A = \frac {b * h} {2}$

Where:

b: It is the base of the triangle

h: It is the height of the triangle

According to the statement data we have:

$b = 6 + 2h$

Substituting we have:

$88 = \frac {(6 + 2h) * h} {2}\\176 = 6h + 2h ^ 2\\2h ^ 2 + 6h-176 = 0$

We divide between 2 on both sides:

$h ^ 2 + 3h-88 = 0$

We factor by looking for two numbers that, when multiplied, are obtained -88 and when added together, +3 is obtained.

These numbers are +11 and -8.

$(h + 11) (h-8) = 0$

We have two roots:

$h = -11\\h = 8$

We choose the positive value.

Thus, the base of the triangle is: $b = 6 + 2 (8) = 22$

Answer:

The base of the triangle is 22 units.

5 0

3 years ago

Read 2 more answers

Q (x + 40) (3x – 20) R S Find m

xz_007 [3.2K]

Answer:

Step-by-step explanation:

1. x + 40 = 3x - 20

2. 40 = 2x - 20

3. 60 = 2x

4. 30 = x

5 0

2 years ago